Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add ssojet/skills --skill m2m-client-credentialsgit clone --depth 1 https://github.com/ssojet/skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/ssojet/skills/m2m-client-credentials)<a href="https://agentmods.dev/skills/ssojet/skills/m2m-client-credentials"><img src="https://agentmods.dev/badge/skills/ssojet/skills/m2m-client-credentials/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/ssojet/skills/m2m-client-credentials"><img src="https://agentmods.dev/badge/skills/ssojet/skills/m2m-client-credentials.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00034 | $0.02032 |
| Opus 5.5 | $0.00014 | $0.00813 |
| Sonnet 5.5 | $0.00007 | $0.00406 |
| Haiku 4.5 | $0.00003 | $0.00203 |
Grade B, and why
m2m-client-credentials scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
response = requests.post( 'https://auth.ssojet.com/oauth2/token', Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
response = requests.post( The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 263 lines · 34 tokens per session scan B 71008c9d57f2
m2m-client-credentials is a skill published in the GitHub repository ssojet/skills (5 stars, last pushed 8mo ago), with no licence file. It adds 34 tokens to every session and 2,032 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
m2m-client-credentials compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| m2m-client-credentialsssojet/skills | Skill | 5 | 8mo ago | none | B | 34 | Claude Code, Codex |
| build-mcp-serveranthropics/claude-plugins-official | Skill | 46k | yesterday | Apache-2.0 | A | 111 | Claude Code |
| data-manager-api-setupgoogle/skills | Skill | 22k | yesterday | Apache-2.0 | A | 86 | Claude Code, Codex |
| vss-manage-video-io-storageNVIDIA-AI-Blueprints/video-search-and-summarization | Skill | 2.0k | yesterday | Apache-2.0 | A | 143 | Claude Code, Codex |
| workers-best-practicescloudflare/skills | Skill | 3.3k | yesterday | Apache-2.0 | A | 25 | Claude Code |
| vss-search-archiveNVIDIA-AI-Blueprints/video-search-and-summarization | Skill | 2.0k | yesterday | Apache-2.0 | A | 67 | Claude Code, Codex |
| newclacky-ai/openclacky | Skill | 1.2k | yesterday | MIT | A | 10 | Claude Code |